RU2624471C1 - Method of constructing cylindrical reservoir - Google Patents

Method of constructing cylindrical reservoir Download PDF

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Publication number
RU2624471C1
RU2624471C1 RU2016101915A RU2016101915A RU2624471C1 RU 2624471 C1 RU2624471 C1 RU 2624471C1 RU 2016101915 A RU2016101915 A RU 2016101915A RU 2016101915 A RU2016101915 A RU 2016101915A RU 2624471 C1 RU2624471 C1 RU 2624471C1
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RU
Russia
Prior art keywords
tank
sheet
guide
raised
reservoir
Prior art date
Application number
RU2016101915A
Other languages
Russian (ru)
Inventor
Дзуитиро ЯМАДА
Сигеки КАТО
Original Assignee
АйЭйчАй КОРПОРЕЙШН
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Filing date
Publication date
Priority to JP2013-135162 priority Critical
Priority to JP2013135162A priority patent/JP6202729B2/en
Application filed by АйЭйчАй КОРПОРЕЙШН filed Critical АйЭйчАй КОРПОРЕЙШН
Priority to PCT/JP2014/066998 priority patent/WO2014208670A1/en
Application granted granted Critical
Publication of RU2624471C1 publication Critical patent/RU2624471C1/en

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/35Extraordinary methods of construction, e.g. lift-slab, jack-block
    • E04B1/3522Extraordinary methods of construction, e.g. lift-slab, jack-block characterised by raising a structure and then adding structural elements under it
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H5/00Buildings or groups of buildings for industrial or agricultural purposes
    • E04H5/10Buildings forming part of cooling plants
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02Containers for fluids or gases; Supports therefor
    • E04H7/04Containers for fluids or gases; Supports therefor mainly of metal
    • E04H7/06Containers for fluids or gases; Supports therefor mainly of metal with vertical axis
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02Containers for fluids or gases; Supports therefor
    • E04H7/04Containers for fluids or gases; Supports therefor mainly of metal
    • E04H7/06Containers for fluids or gases; Supports therefor mainly of metal with vertical axis
    • E04H7/065Containers for fluids or gases; Supports therefor mainly of metal with vertical axis roof constructions
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02Containers for fluids or gases; Supports therefor
    • E04H7/18Containers for fluids or gases; Supports therefor mainly of concrete, e.g. reinforced concrete, or other stone-like material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/004Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • F17C2201/0104Shape cylindrical
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • F17C2201/0104Shape cylindrical
    • F17C2201/0109Shape cylindrical with exteriorly curved end-piece
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • F17C2201/0104Shape cylindrical
    • F17C2201/0119Shape cylindrical with flat end-piece
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03Orientation
    • F17C2201/032Orientation with substantially vertical main axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05Size
    • F17C2201/052Size large (>1000 m3)
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/01Reinforcing or suspension means
    • F17C2203/011Reinforcing means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0304Thermal insulations by solid means
    • F17C2203/0337Granular
    • F17C2203/0341Perlite
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602Wall structures; Special features thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602Wall structures; Special features thereof
    • F17C2203/0612Wall structures
    • F17C2203/0626Multiple walls
    • F17C2203/0629Two walls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0636Metals
    • F17C2203/0639Steels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0678Concrete
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/068Special properties of materials for vessel walls
    • F17C2203/0695Special properties of materials for vessel walls pre-constrained
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/22Assembling processes
    • F17C2209/221Welding
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/23Manufacturing of particular parts or at special locations
    • F17C2209/232Manufacturing of particular parts or at special locations of walls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/23Manufacturing of particular parts or at special locations
    • F17C2209/234Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/23Manufacturing of particular parts or at special locations
    • F17C2209/234Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
    • F17C2209/236Apparatus therefore
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/23Manufacturing of particular parts or at special locations
    • F17C2209/238Filling of insulants
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/03Mixtures
    • F17C2221/032Hydrocarbons
    • F17C2221/033Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/03Mixtures
    • F17C2221/032Hydrocarbons
    • F17C2221/035Propane butane, e.g. LPG, GPL
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146Two-phase
    • F17C2223/0153Liquefied gas, e.g. LPG, GPL
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146Two-phase
    • F17C2223/0153Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0134Applications for fluid transport or storage placed above the ground

Abstract

FIELD: construction.
SUBSTANCE: method of erection includes assembling the metal inner reservoir by individually and sequentially lifting side sheets of the inner reservoir by means of a lifting device from the inner side of the wall of prestressed concrete and welding the side sheets of the inner reservoir of the next belt with the lower section of the lifted side sheet of the inner reservoir, and further comprises the stage of mounting the guide pair configured to receive in itself the lifted side sheet of the inner reservoir in the form of a sandwich on the side sheet to be welded under it.
EFFECT: safety of the reservoir mounting due to preventing the fall of the next side sheet of the inner reservoir, intended for fixation.
5 cl, 10 dwg

Description

FIELD OF TECHNOLOGY

The present invention relates to a method for constructing a cylindrical tank.

Priority is claimed on Japanese Patent Application No. 2013-135162, filed June 27, 2013, the contents of which are incorporated herein by reference.

BACKGROUND

Double-walled cylindrical tanks that have an internal tank and an external tank are used to store cryogenic liquids such as liquefied natural gas (LNG) and liquefied petroleum gas (LPG). Patent Document 1 describes a cylindrical tank that has an internal tank made of metal and an external tank made of concrete.

Patent Document 1 discloses a method for simultaneously erecting a metal inner reservoir and a concrete outer reservoir in order to reduce the erection period of this cylindrical reservoir. More specifically, for this purpose, lifting supports are mounted on the base portion of the external reservoir, and then these lifting supports are held at a predetermined height by the lifting devices (see FIG. 4 (b) of Patent Document 1). When the side of the outer tank is built, the roof of the inner tank and the roof of the outer tank are assembled at the base portion of the outer tank. Then, while the roof of the inner tank and the roof of the outer tank are in a raised position by using a lifting device, a plurality of belts of the side sheets of the inner tank are fastened to the roof of the inner tank, starting from the highest level to the lowest level. As a result, a metal inner tank and a concrete outer tank were simultaneously erected.

LIST OF QUOTED DOCUMENTS

Patent Document 1: Japanese Unexamined Patent Application. First publication No. H07-62924.

SUMMARY OF THE INVENTION

TECHNICAL PROBLEM

According to the generally accepted technology, which involves the use of the aforementioned erection system with a hoist, into the space under the side sheet of the inner tank, which was lifted by the hoisting unit, the next side sheet of the inner tank intended for fastening is carried through the passage of the installation site. More specifically, with the help of lifting devices (indicated by reference numeral 6-2 in FIG. 6 of patent document 1) formed from the guide and the winch, the side sheets of the inner tank carried through the passage of the mounting pad are moved to a predetermined welding position. The next side sheet of the inner tank is welded to the lower section of the raised side sheet of the inner tank.

However, there are few or no structures around the next side sheet of the inner tank, which is intended to be attached to the lower section of the raised side sheet of the inner tank, that could be used to prevent the side sheet of the inner tank from falling. Therefore, when the next side sheet of the inner tank is carried through the passage of the mounting pad, close attention must be paid to prevent this side sheet of the inner tank from falling.

The present invention was made in view of the above problem, and has the task to provide a method for constructing a cylindrical tank, which - in the case of the use of an erection system with a hoist, allows to reliably prevent the fall of the inner tank intended for fastening the next side sheet without the need for complex operations.

DESCRIPTION OF THE INVENTION

To solve this problem, the first object of the present invention is a method of constructing a cylindrical tank, which includes the step of assembling the metal inner tank by individually and sequentially lifting the inner sheet of the inner tank from the inner side of the outer concrete tank by means of a lifting device and welding the next side sheet of the inner tank c the lower section of said raised side sheet of the inner tank, and further comprising It’s the step of installing a guide pair designed to locate said raised side sheet of the inner tank between said guide elements on said side sheet, which should be welded to it from below.

After the guide pair, designed to locate between its guide elements a raised side sheet of the inner tank, mounted on the next side sheet of the inner tank, which should be welded under it, a raised side sheet of the inner tank (structure located directly above the next side sheet of the inner reservoir) is used to create an opportunity to protect the next side sheet of the inner reservoir, which should be attached to izhney raised section inner tank side sheet from falling.

The second object of the present invention is the first object as described above, further comprising the step of transferring the next side sheet of the inner tank in the circumferential direction of the tank, while the raised side sheet of the inner tank is sandwiched between this guide pair .

While the raised side sheet of the inner tank is sandwiched between the guide pair, the next side sheet of the inner tank is transferred in the circumferential direction of the tank, thereby using the raised side sheet of the inner tank as the transfer guide. As a result, it becomes possible to easily carry the next side sheet of the inner tank in the circumferential direction of the tank along the raised side sheet of the inner tank.

A third object of the present invention is a second object, as set forth above, in which the guide pair has guide rollers that roll on the surfaces of the sheets of the raised side sheet of the inner tank.

If the guide pair has guide rollers, then the friction and noise produced between this guide pair and the raised side sheet of the inner tank can be reduced when the next side sheet of the inner tank is transferred in the circumferential direction of the tank.

The fourth object of the present invention is a second or third object as set forth above, in which the surface of the sheet of the raised side sheet of the inner tank, which faces the inside of the tank, is equipped with a fastening nut, the method further comprising the step the installation of the first guide element of the pair of guide elements that make up the guide pair, at a level below the fastening nut, and this first guide element is opposite on top spine of the sheet raised side plate of the inner tank, which faces the inner side of the tank.

In the case where a fixing nut is provided on the surface of the sheet of the side sheet of the inner tank that faces the inside of the tank, used to connect adjacent side sheets of the inner tank, the first guide element is installed at a level below the fixing nut. This eliminates the collision between the first guide element, and there is a smooth movement of the next side sheet of the inner tank in the circumferential direction of the tank.

A fifth object of the present invention is a fourth object as set forth above, further comprising the step of installing a second guide element from a pair of guide elements that make up the guide pair so that it extends to a level above the first guide element, wherein , this second guide element is the opposite of the sheet surface of the raised side sheet of the inner tank, which is directed to the outside relative to the tank.

If the second guide element, which guides the sheet surface of the side sheet of the inner tank, which "looks" outward relative to the tank, extends to a level higher than the first guide element, then on the outer surface of the sheet, where there is no fastening nut that "looks" outward from the tank, a wide guide area can be provided.

POSITIVE EFFECTS OF THE INVENTION

According to the present invention, in a method for erecting a cylindrical tank that uses a hoist erection system, it is possible to reliably prevent a fall of the inner tank intended for fastening the next side sheet without the need for complex operations.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram showing a first step of an erection method in accordance with an embodiment of the present invention.

FIG. 2 is a diagram showing a second step of an erection method according to an embodiment of the present invention.

FIG. 3 is a diagram showing a third step of a manufacturing construction method in accordance with an embodiment of the present invention.

FIG. 4 is a diagram showing a state in which a side sheet of an inner tank is held in an embodiment of the present invention.

FIG. 5 is an enlarged view showing a structure of a main part of a guide pair according to an embodiment of the present invention.

FIG. 6 is a diagram showing an arrangement of guide pairs in accordance with an embodiment of the present invention.

FIG. 7 is a diagram showing a black step of an erection method in accordance with an embodiment of the present invention.

FIG. 8 is a diagram showing a fifth step of an erection method according to an embodiment of the present invention.

FIG. 9 is a diagram showing a sixth step of an erection method according to an embodiment of the present invention.

FIG. 10 is a perspective view showing the construction of a guide member in accordance with a second embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The following is a description of the method of construction (construction) of a cylindrical tank in accordance with the present invention with reference to the drawings. In the following description, as an example of a cylindrical tank, an above-ground double-walled prestressed concrete tank configured to store LNG will be used.

As shown in FIG. 1, in the present method, a disk-shaped base plate 1 is first manufactured. A base portion 3 is mounted on the outer circumferential edge of the base plate 1, on which wall 2 of prestressed concrete (external reservoir) is to be assembled. Along the inner side of the main part 3, anchor strips 4 of the inner tank are installed. After this, the wall 2 is made of prestressed concrete by pouring. To form a wall 2 made of prestressed concrete by pouring on both of the sides - on the inside and outside provide supporting scaffolds and install the formwork (not shown in the drawing).

Then, on the base plate 1, cover 6 of the base portion is laid. In the central part of the base plate 1, a roof stand 7 is assembled. At the end of the base of the wall 2, pre-stressed concrete is formed by a passage 8 of the installation site through which side sheets 9 of the inner tank must be fed one after the other. Along the inner side of the end of the base of the wall 2 of prestressed concrete, a plurality of portal bollards 10 are installed for mounting the side sheets of the inner tank. These portal pedestals 10 are installed so as to form a bridge over the entire annular region X at the point where, finally, the inner cylindrical tank, made from the assembled side sheets 9 of the inner tank, will be installed on the base plate 1.

Further, in accordance with the present technology, as shown in FIG. 2, the side sheets 9 of the inner tank are placed on the portal pedestals 10. Adjacent side sheets 9 of the inner tank are welded so that they are interconnected in the circumferential direction, forming a generally cylindrical shape. Then, a transition sheet 11 is fitted to the upper edge of the interconnected side sheets 9 of the inner tank 11. After this, components 12 of the annular section 13 (see Fig. 3), such as perlite concrete blocks or light, are temporarily laid in the annular region X under the portal pedestals 10 building concrete blocks. Then on the roof stand 7 collect the roof 14 of the inner tank. Then, the interconnected side sheets 9 of the inner tank are joined to the outer circumferential edge of the roof 14 of the inner tank by means of a transition sheet 11.

Further, according to the present method, a wall 2 of prestressed concrete over the transition sheet 11 into the gap 15 between the internal / external reservoirs (the gap between the wall 2 of prestressed concrete and the side sheets 9 of the inner reservoir) above the base plate 1 along the circumferential direction of the reservoir is placed many suspended support 16 of the elevator (suspension points). The lateral lifting support 16 of the elevator is provided so that it protrudes at a predetermined height in the direction of the inner side of the tank essentially horizontally from the wall 2 of prestressed concrete. This lateral suspension support 16 of the elevator is reliably removably fixed and attached, for example, to an anchor plate embedded in a wall 2 of prestressed concrete.

Further, a plurality of transitional reinforcing elements 17 are installed on the adapter sheet 11, corresponding to the side suspension supports 16 of the elevator. The transition reinforcing element 17 protrudes from the transition sheet 11 in the direction of the gap 15 between the inner and outer reservoirs. Above the space between the lateral suspension support 16 of the lift and the transitional reinforcing element 17, a lifting device 18 is installed. This lifting device 18 is a lift with a central hole. The main unit of this device is mounted on a side suspension support 16 of the lift, and the lower end of the lifting rod 19 is attached to the transitional reinforcing element 17.

After the lifting devices 18 are installed as described above, the roof stand 7 is removed and the adapter sheet 11 is suspended by using the lifting devices 18, as shown in FIG. 3. Thereby, the side sheet 9 of the inner tank rises. After the side sheet 9 of the inner tank is raised by using the lifting devices 18 as a result of one working stroke of the lifting rod 19 (which in the present embodiment corresponds to the vertical width of one side sheet 9 of the inner tank), into the space that, after lifting, was formed under raised side sheet 9 of the inner tank, enter the side sheet 9 of the inner tank of the next belt (next side sheet). Note that the lifting rod 19 has a structure that is separable into a plurality of rods. If the lifting rod 19 meets the scaffolds 5, then the upper part of the lifting rod 19 is separated to make it shorter.

As shown in FIG. 4, the side sheet 9 of the inner tank of the next belt (sometimes referred to as the side sheet 9B of the inner tank), which was carried through the passage 8 of the mounting pad, is located on the portal pedestals 10. It is preferable that the portal pedestal 10 is equipped with a roller device 20 configured to be transported side sheet 9 of the inner tank in the circumferential direction. This side sheet 9 of the inner reservoir is suspended by means of moving cranes 21 provided in the gap 15 between the inner / outer reservoirs and placed on the roller devices 20 in a vertically raised position, and then moved to a predetermined welding location.

On the side sheet 9B of the inner tank, guide pairs 100 are mounted. This guide pair 100 is an element configured to receive in the form of a sandwich the side sheet 9 of the inner tank lifted by the lifting device (sometimes hereinafter referred to as the side sheet 9A of the inner tank), thereby protecting the side sheet 9B of the inner tank, which is designed to be welded to the bottom of the side sheet 9A of the inner tank, from falling. This guide pair 100 is made of a pair of guide elements (first guide element 110, second guide element 120). The first guide element 110 is mounted on one side of the side sheet 9B of the inner tank. The second guide member 120 is mounted on the second surface of the side sheet 9B of the inner tank.

As shown in FIG. 5, the first guide element 110 is located opposite the “sheet” surface of the side sheet 9A of the inner tank (the inwardly directed surface 9A1 of the sheet), which is directed toward the inside of the tank. The first guide element 110, by means of a bracket 101, is attached to the “sheet” surface of the side sheet 9B of the inner tank (the inwardly directed surface 9B1 of the sheet), which faces the inside of the tank. As shown in FIG. 6, the bracket 101 is made of U-shaped portal steel material. This bracket 101 is welded to the side sheet 9B of the inner tank, and the first guide member 110 is attached to the side sheet 9B of the inner tank. Note that only one side of the bracket 101 is welded to the side sheet 9B of the inner tank. As a result, at a later stage, the bracket 101 can be easily removed with a hammer or the like.

As shown in FIG. 5, the first guide member 110 has guide rollers 111 that roll along the inwardly directed “sheet” surface 9A1 of the side sheet 9A of the inner tank. These guide rollers 111 have an axis of rotation 112, which extends vertically. The axis of rotation 112 is rotatably held in the first guide element 110. At the upper end of the first guide element 110, which extends vertically, the guide rollers 111 can rotate on the axis of rotation 112.

On the inwardly directed “sheet” surface 9A1 of the inner vessel side sheet 9A, there is a support bracket (fixing nut) 102. In addition, on the inwardly “sheeted” surface 9B1 of the inner vessel side sheet 9B there is also a support bracket 102. When the inner side sheets 9 are welded. of the tank, these support brackets 102 are used as connectors for preliminary welding between adjacent adjacent side sheets 9A of the inner tank.

A welding jig is attached to the support bracket 102, which during welding positions and fixes adjacent side sheets 9A of the inner tank. For example, as shown in FIG. 6, along the four edges of the side sheet 9A of the inner tank, a plurality of support brackets 102 are provided that serve as welding lines.

As shown in FIG. 5, the first guide member 110, located opposite the inwardly directed “sheet” surface 9A1 of the inner vessel side sheet 9A, is located below the support brackets 102 of the inner tank side sheet 9A. From the lower end of the side sheet 9A of the inner tank to the support brackets 102 provided along this lower end, a flat surface portion A of a predetermined width is formed. The guide element 110 is located opposite this portion of the flat surface A at a level below the support brackets 102. That is, the guide rollers 111 of the first guide element 110 roll along the portion A of the flat surface.

On the other hand, opposite the “sheet” surface of the side sheet 9A of the inner tank (the outwardly facing surface 9A2 of the sheet), which is facing outward relative to the tank, a second guide member 120 is disposed. This second guide member 120 is attached to the “sheet” surface of the side sheet by a bracket 101 9B of the inner reservoir (outwardly directed surface 9B2 of the sheet), which is outwardly directed relative to the reservoir. The bracket 101 is made of material "portal steel" similar to the execution of the bracket from the side of the first guide element 110. This bracket 101 is welded to the side sheet 9B of the inner tank, and the second guide element 120 is attached to the side sheet 9B of the inner tank. Note that only one side of the bracket 101 is welded to the side sheet 9B of the inner tank, similar to the embodiment of the bracket from the side of the first guide member 110.

The second guide member 120 has guide rollers 121 that roll along the outwardly “sheet” surface 9A2 of the side sheet 9A of the inner tank. These guide rollers 121 have an axis of rotation 122, which extends vertically. The axis of rotation 122 is rotatably held in the second guide element 120. At the upper end of the second guide element 120, which extends vertically, the guide rollers 121 can rotate on the axis of rotation 122.

The outwardly directed “sheet” surface 9A2 of the inner sheet side sheet 9A is not equipped with any support brackets 102. A second guide member 120 located opposite the outwardly “sheeted” surface 9A2 of the inner sheet side sheet 9A is set higher than the first guide element 110 This second guide member 120 is opposite the rear side of the support brackets 102 formed on the side sheet 9A of the inner tank. More specifically, the guide rollers 121 of the second guide member 120 roll at a height corresponding to the height of the support brackets 102.

Incidentally, the upper belt of the side sheet 9 of the inner tank is thin, while its lower belt is gradually becoming thicker, so that it is able to withstand weight, water pressure, etc. As shown in FIG. 5, the side sheet 9A of the inner tank has a thickness thinner than the thickness of the side sheet 9B of the inner tank. As for the guide rollers 121 of the second guide element 120, in their upper position, these guide rollers 121 extend further to compensate for the difference in thickness in the vertical 1) direction. Note that even if there is a certain gap between the guide pair 100 and the side sheet 9B of the inner tank, it has little effect on the ability to prevent the side sheets 9B of the inner tank from falling and moving.

Along the upper end of the side sheet 9B of the inner tank, a plurality of guide pairs 100 are mounted, as shown in FIG. 6. In the present embodiment, the guide pairs 100 are installed in three places along the upper end of the side sheet 9B of the inner tank. From an equilibrium point of view, the guide pairs 100 are set so that adjacent guide pairs are evenly distributed. Note that the size, number of guide pairs 100, as well as the distance between them, etc. may accordingly vary depending on the size and weight of the side sheet 9B of the inner tank.

Upon completion of the installation of the guide pairs 100, as described above, the side sheet 9A of the inner tank, which was carried through the one shown in FIG. 4 passage 8 of the installation site, move in the circumferential direction of the tank. According to the present technology, while the side sheet 9A of the inner tank lifted by the lifting device is positioned as a sandwich between the guide pairs 100, its side sheet 9B of the inner tank to be welded from below is moved in the circumferential direction. The side sheets 9A of the inner tank are generally welded into a cylindrical shape. By using the side sheets 9A of the inner tank as the transport rail, it is possible to provide transport tracks for the side sheets 9B of the inner tank around the entire circumference of the tank without the need for additional rail elements to move the side sheets 9B of the inner tank.

Further, by using the side sheets 9A of the inner tank as the transport rail, it is possible to move the side sheet 9B of the inner tank along the side sheet 9A of the inner tank as a welding subject. This makes it easy to vertically position the welding positions of the side sheets 9A, 9B of the inner tank. The guide pair 100 has guide rollers 111, 121 that roll along the “sheet” surfaces of the side sheet 9A of the inner tank, as shown in FIG. 5. When the side sheet 9B of the inner tank is moved in the circumferential direction of the tank, these guide rollers 111, 121 reduce the friction and noise produced between the guide pair 100 and the side sheet 9A of the inner tank. As a result, the side sheet 9B of the inner tank becomes easy to move along the side sheet 9A of the inner tank in the circumferential direction.

Further, an inwardly directed “sheet” surface 9A1 of the side sheet 9A of the inner tank is provided with a support bracket 102 for connecting adjacent side sheets 9 of the inner tank. In accordance with the present method, the first guide element 110, opposite the inwardly directed “sheet” surface 9A1 of the side sheet 9A of the inner tank, is mounted under the support bracket 102. This enables the guide rollers 111 to roll along a flat surface portion A below the support brackets 102. Therefore, in the directional direction inside the “sheet” surface 9A1 of the side sheet 9A of the inner tank, the side sheet 9B of the inner tank is smoothly moved in the circumferential direction of the tank when chenii collision with the supporting brackets 102.

On the other hand, the outwardly “sheeted” surface 9A2 of the side sheet 9A of the inner tank is not equipped with any support brackets 102. Therefore, according to the present method, the second guide member 120 opposite the outwardly directed “sheet” surface 9A2 of the side sheet 9A of the inner tank, mounted above the first guide element 110. This gives the guide rollers 121 the ability to roll at a height equal to the height of the support brackets 102. Therefore, on the outwardly directed “sheet” surface 9A2, where absence of any support brackets 102, the contact area between the guide rollers 121 and outward "sheet" surface 9A2 more, thereby causing the possibility of using guide rollers 121 guide the general area.

After the side sheet 9B of the inner tank is moved to a predetermined welding position, the side sheets 9B of the inner tank adjacent to the circumferential direction of the tank are welded to each other. As shown in FIG. 4, both the surface of the inner side and the surface of the outer side of the side sheet 9A of the inner tank are directed into space and do not have any structural elements attached to them. However, in the present method, the guide pairs 100 configured to receive in the form of a sandwich the side sheet 9A of the inner tank raised by the lifting device are mounted on the side sheet 9B of the inner tank, which is intended to be welded from below, and the raised side sheet 9A of the inner tank ( a structure immediately above the side sheet 9B of the inner tank) is used to prevent the side sheet 9B of the inner tank from falling.

If the side sheet 9B of the inner tank "is about to" fall on the outside of the tank, then the first guide member 110 making the guide pair 100 abuts against the inwardly "sheet" surface 9A1 of the side sheet 9A of the inner tank, thereby preventing the side sheet 9B of the inner tank from falling. If the side sheet 9B of the inner tank "is about to" fall inside the tank, then the second guide member 120 constituting the guide pair 100 abuts against the outward "sheet" surface 9A2 of the side sheet 9A of the inner tank, thereby preventing the side sheet 9B of the inner tank from falling. The side sheet 9B of the inner tank, unlike the side sheet 9A of the inner tank, is not held by the lifting devices 18. Therefore, by installing the guide pair 100, it is possible to prevent the side sheet 9B of the inner tank from falling.

On the other hand, due to the holding of the lifting devices 18, the side sheet 9A of the inner tank allows the load to be received from the side of the side sheet 9B of the inner tank to prevent it from falling. In addition, being connected to each other in the circumferential direction of the tank, the side sheets 9A of the inner tank have a shape-shaped strength. Further, in the case, for example, when the load to prevent falling is simultaneously applied from the side of the plurality of side sheets 9B of the inner tank, the deviation (position displacement) caused by this load can easily be limited to the side sheet 9A of the inner tank if the side sheet 9A of the inner tank is a transition sheet 11 or another similar element is equipped with a travel stop, which is designed to be brought into focus with the wall 2 of prestressed concrete in order to maintain the gap between the wall 2 of redvaritelno prestressed concrete side plates 9A and the inner tank.

Welding the adjacent side sheets 9B of the inner tank in the circumferential direction of the tank into a generally cylindrical shape eliminates the possibility that the side sheet 9B of the inner tank will fall. Therefore, the guide pairs 100, which are now unnecessary, are removed. Both the first guide element 110 and the second guide element 120 are attached — using wedges or the like — to only one side of the brackets 101 that are already welded. Therefore, striking the wedges in the opposite direction with a hammer or the like in the opposite direction, the guide pair 100 can be easily removed. Note that the remote guide pairs 100 are reused to prevent falling and moving the side sheet 9B of the inner tank, which is to be introduced as follows.

After the side sheets 9B of the inner tank are connected in the circumferential direction of this tank, the upper end of the side sheet 9B and the lower end of the side sheet 9A of the inner tank are welded. Then, the side sheets 9 of the inner tank connected by this welding are lifted up by lifting devices 18. In the space formed as a result of the rise under the side sheet 9A of the inner tank, the side sheet 9B of the inner tank of the next belt is inserted, and the removed guide pairs 100 are installed on it. Thus, the lifting devices 18 successively lift each of the plurality of side sheets 9 of the inner tank and weld the side sheet 9B of the inner tank of the next belt with the lower part of the previously raised side sheet 9A of the inner tank.

During this workflow, under the gantry tables 10, the annular section 13 is insulated from the cold.

These work on isolation from the cold of the annular section 13 is performed as follows. Blocks 41A, 41B of pearlite concrete, as well as lightweight concrete blocks 42 are assembled on the base portion of the material with restored frost resistance 39. An annular plate 43 is attached to them. Since the annular section 13 is an element that ultimately holds the assembled side sheets 9 of the inner tank, then this annular plate 43 is made thick, and therefore the frost-resistant structure is made of solid material, such as concrete blocks.

Upon completion of the isolation from the cold of the annular section 13, the support legs 10c, which were located in the region of the tank, thinner than the annular section 13, are moved to the annular section 13. After such a movement in the reservoir, thinner than the annular section 13, there are no interfering objects. Therefore, it becomes possible to carry out insulation work from the cold in the central part of the base plate 1. When performing the work of isolation from the cold of the central part, foamy glass 40 is laid on the base portion of material 39 with restored frost resistance, as shown in FIG. 7. Then, pearlite concrete blocks (not shown) and the bottom plate of the inner tank (not shown) are laid on top of it in the indicated order.

Further, as shown in FIG. 7. On the roof 14 of the inner tank, the roof 22 of the outer tank is assembled. The roof 22 of the outer reservoir is connected to the roof 14 of the inner reservoir by means of connecting elements (not shown in the drawing), and, therefore, is made together with the roof 14 of the inner reservoir. When the assembly of the wall 2 of prestressed concrete is completed, lifting devices 18 are mounted on its top to change the suspension points. On the portal curbstones 10, side sheets 9 of the inner tank located along the ring are welded to one another, and also vertically exposed side sheets 9 of the inner tank are welded to each other. Thus, the side sheets 9 of the inner reservoir are integrally formed into a cylindrical shape. Thus, individually and sequentially performed lifting device using the lifting device 18 lifting the side sheet 9 of the inner tank and fixing the raised side sheet 9 of the inner tank to the side sheet 9 of the inner tank of the next belt, which is located underneath, attach the side sheets 9 of the inner tank, in order, from the highest level to the lowest.

As shown in FIG. 8, upon completion of attachment of the side sheets 9 of the inner reservoir to the lowest level, the portal cabinets 10 are removed. After that, the lower end of the side sheets 9 of the inner tank at the lowest level is closed down into the annular section 13 and fastened to the anchor strips 4 of the inner tank installed on the base plate 1. As a result, the inner tank 30 is completed. Further, the fastenings of the roof of the external tank 22, which was raised together with the roof 14 of the internal tank, to the roof 14 of the internal tank, together with the fastening elements (not shown in the drawing), are released and then closed on the upper end of the wall 2 from prestressed concrete, which was assembled to its highest level. Then, a lateral coating 2a is applied to the inner surface of the wall 2 of prestressed concrete. On the outside of the wall 2 of prestressed concrete, a ladder 23 is installed for climbing up and down. The roof 22 of the external tank is equipped with a roof ladder 24. Then, a cylindrical pump housing 25 is introduced into the tank.

After that, the transient reinforcing elements 17 are cut off and the lifting devices 18 are removed. Then, the voltage of the concrete in the wall 2 is made of prestressed concrete. Then, after the passage 8 of the installation site is closed, and the cylindrical pump housing 25 is installed, water is poured and pressure and tightness tests are carried out.

Finally, as shown in FIG. 9, in the gap 15 between the inner and outer reservoirs, cold-insulating material 44 is placed; in addition, the cold-insulating material 44 is placed on the rear side of the roof 14 of the inner reservoir. Thus, work on isolation from the cold is completed. After that, at the end of the painting and isolation work from the cold of the pipeline, the cylindrical tank 50 was erected.

The above embodiment implements the technology of the method of erecting a cylindrical tank 50, which includes the step of assembling the metal inner tank 30 by individual and sequential execution - from the inner side of the wall 2 of prestressed concrete - lifting using the lifting device 18 of the side sheet 9 of the inner tank and welding the side sheet 9B of the inner reservoir of the next belt with the lower part of the raised side sheet 9A of the inner reservoir, further including the step the installation of the guide pair 100, configured to receive in the form of a sandwich the raised side sheet 9A of the inner tank, on the side sheet 9B of the inner tank of the next level, which is designed for welding from below. As a result, in the case of adopting the erection system by means of a lifting device, it is possible to prevent the fall of the next inner sheet 9B intended for fastening.

Although a preferred embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to this embodiment. The forms, combinations, and other features of the components shown in this embodiment are merely illustrative examples, and various changes can be made to them based on design requirements, etc., without going beyond the essence and scope of the invention.

For example, if a design such as that shown in FIG. 10, it is possible to prevent the fall of the side sheet 9B of the inner tank.

FIG. 10 is a perspective view showing the construction of a guide member (first guide member) in accordance with a second embodiment of the present invention. In FIG. 10, the components are the same as in the above embodiment, or similar to them are indicated by the same reference numerals.

The guide pair 100 (the second guide element in FIG. 10 is not shown) does not include guide rollers 111 of the above embodiment. More specifically, the first guide member 110 constituting the guide pair 100 is itself made of an H-shaped steel member. This first guide element 110 is inserted into the “frame” of the bracket 101, and the wedge element 103 is driven into the gap. Thus, the first guide element 110 is easily attached to the inwardly directed “sheet” surface 9B1 of the side sheet 9B of the inner tank. With this design, the fall of the side sheet 9B of the inner tank can be prevented at a lower cost since this design is simple.

Further, in the above embodiment, a technology has been described in which the guide rollers roll over the surface of the raised side sheet of the inner tank to attach the side sheet of the inner tank of the next level. However, the present invention is not limited to such a technology. For example, even with guide pairs having the structure shown in FIG. 10, it is possible to attach a side sheet of the next belt in the circumferential direction of the inner tank, while the raised side sheet of the inner tank is located in the form of a sandwich between the guide pairs. In the case of the adoption of the guide pairs shown in FIG. 10 by the construction, it is preferable that there is a predetermined gap between the raised side sheet of the inner tank and the substrate of the next belt of the inner tank, in order to prevent an increase in friction, even if this gap becomes somewhat larger, and that the side sheet of the inner tank is in the form of a sandwich between guide pairs.

In addition, for example, in the above embodiment, a technology has been described in which the bracket is welded and the first guide element is attached to the side sheet of the inner tank. However, the present invention is not limited to such a technology. In order to attach the first guide element to the side sheet of the inner tank, a pre-welded support bracket can be used.

Further, for example, in the above embodiment, a technology has been described in which the supporting brackets are pre-welded to the inwardly directed surface of the raised side sheet of the inner tank. However, the present invention is not limited to such a technology. For example, in the case when no support brackets are welded to the raised side sheet of the inner tank, the first guide element and the second guide element, which should be attached to the wall of the inner tank of the next level, can be installed at the same height.

Further, for example, in the above embodiment, the second guide element is located at a level above the first guide element and is installed at a height equal to the height of the support brackets. However, the present invention is not limited to this. From the point of view of stability of the guide, it is preferable that the first guide element and the second guide element are partially overlapped in height (see FIG. 5).

Further, for example, in the above embodiment, the first guide element and the second guide element have a similar construction. However, the present invention is not limited to this. For example, one of the first guide element and the second guide element may have guide rollers, while the other has no rollers. For example, the first guide element, to which centrifugal force is applied when it moves in the circumferential direction of the tank, can have guide rollers, while the second guide element, which has little effect on centrifugal force, can have no rollers (this design is shown in Fig. 10).

Further, for example, the present technology is applicable not only to the above described embodiment, but, obviously, to the usual technique of lifting the side sheet of the inner tank.

INDUSTRIAL APPLICABILITY

According to the present invention, in the method of erecting a cylindrical tank that receives a lifting erection system, it is possible to reliably prevent the fall of the next side sheet of the inner tank to be connected without the need for complex operations.

Brief description of reference signs

2 - wall of prestressed concrete (external tank)

9 - side sheet of the inner tank

9A - side sheet of the inner tank (raised side sheet of the inner tank)

9A1 - inwardly directed surface of the sheet

9A2 - outwardly directed surface of the sheet

9B - side sheet of the inner tank (side sheet of the inner tank of the next level)

18 - lifting device

30 - inner tank

50 - cylindrical tank

100 - guide pair

102 - supporting bracket (fixing nut)

110 - the first guide element

111 - guide roller

120 - second guide element

121 - guide roller

Claims (10)


1. A method of constructing a cylindrical tank, comprising the step of assembling a metal inner tank by individually and sequentially performing, from the inside of the outer concrete tank, lifting the side sheet of the inner tank with a lifting device and welding the next side sheet of the inner tank with a lower section of said raised side sheet an internal reservoir, and further including a step
- installation of a guide pair made with the possibility of positioning between its guide elements the said raised side sheet of the inner tank on said next side sheet, which should be welded to it from below.
2. The method of construction of a cylindrical tank according to claim 1, further comprising the step
- transferring the next side sheet of the inner tank in the circumferential direction of the tank, while the raised side sheet of the inner tank is located between the guide elements of this guide pair.

3. The method of construction of a cylindrical tank according to claim 2,
in which the guide pair has guide rollers that roll on the surfaces of the sheets of the raised side sheet of the inner tank.

4. The method of construction of a cylindrical tank according to claim 2 or 3,
in which the surface of the sheet of the raised side sheet of the inner tank, which is facing the inner side of the tank, is equipped with a fixing nut,
wherein the method further includes the step of installing the first guide element from the pair of guide elements that make up the guide pair, at a level below the fastening nut, this first guide element being opposite to the sheet surface of the raised side sheet of the inner tank, which faces the inside of the tank.

5. The method of erecting a cylindrical tank according to claim 4, further comprising the step of installing a second guide element from a pair of guide elements that make up the guide pair so that it extends to a level above the first guide element, this second guide element being the opposite the surface of the sheet of the raised side sheet of the inner tank, which faces the outside of the tank.
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